Also from my personal experience if you DO want to learn about a PHP framework: Laravel is a great framework and Laracasts is a great learning ressource, I wish more frameworks/languages had learning ressources like that (yeah I know Laracasts does some extra stuff as well :)) I can only recommend it.
That being said the other options are great as well, JS has come a long way since the days of yore.
PS: It's all going to be a bit... rocky in the beginning. No matter what you choose. It takes a while to wrap your head around everything but it is doable in a decent timeframe.
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Also from my personal experience if you DO want to learn about a PHP framework: Laravel is a great framework and Laracasts is a great learning ressource, I wish more frameworks/languages had learning ressources like that (yeah I know Laracasts does some extra stuff as well :)) I can only recommend it.
That being said the other options are great as well, JS has come a long way since the days of yore.
PS: It's all going to be a bit... rocky in the beginning. No matter what you choose. It takes a while to wrap your head around everything but it is doable in a decent timeframe.